# Functions
Builder creates a simple viper instance with a given config file path configFilePath should point to a file that have one of these extensions:
"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "dotenv", "env", "ini".
CustomBuilder allows one to use an already initialized and configure Viper instance
Note: It's important to receive a viper instance that is already initialized using viper.ReadInConfig() or viper.ReadConfig(in io.Reader) or viper.ReadRemoteConfig() Also note that all other Builder function will do nothing since we assume this instance is configured properly.
# Constants
EnvKeyDelimiterFrom shell environment delimiter.
EnvKeyDelimiterTo delimiter used by application.